EP0604907A1 - A method of forming a multilayer plastic pipe and a multilayer plastic pipe for conducting fluids - Google Patents
A method of forming a multilayer plastic pipe and a multilayer plastic pipe for conducting fluids Download PDFInfo
- Publication number
- EP0604907A1 EP0604907A1 EP93120793A EP93120793A EP0604907A1 EP 0604907 A1 EP0604907 A1 EP 0604907A1 EP 93120793 A EP93120793 A EP 93120793A EP 93120793 A EP93120793 A EP 93120793A EP 0604907 A1 EP0604907 A1 EP 0604907A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe
- outer layer
- layer
- core
- mixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
- B29C65/3408—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising single particles, e.g. fillers or discontinuous fibre-reinforcements
- B29C65/3412—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising single particles, e.g. fillers or discontinuous fibre-reinforcements comprising fillers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
- B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
- B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/114—Single butt joints
- B29C66/1142—Single butt to butt joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
- B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/022—Mechanical pre-treatments, e.g. reshaping
- B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/721—Fibre-reinforced materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
- B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
- B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
- B29C66/7234—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2091/00—Use of waxes as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
- B29L2031/601—Multi-tubular articles, i.e. composed of a plurality of tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0078—Materials; Production methods therefor laminated
Definitions
- the invention relates to a method of forming a multi-layer plastic pipe for conducting fluids.
- the invention also relates to a multi-layer plastic pipe formed by the method, as well as to a method of connecting a multi-layer plastic pipe.
- a pipe is hereby subjected e.g. to different bending and tensile forces. This is disadvantageous since bending, stretching and scratching of a pipe deteriorate its mechanical strength, thereby reducing its life. In addition, the lifetime of a pipe may be reduced by environmental condition, such as diffusible materials.
- the object of the present invention is to eliminate the above disadvantages by providing a method for forming a dual layer plastic pipe. It is also an object of the present invention to provide such a pipe. Furthermore, it is an object of the present invention to provide a method of connecting a dual layer plastic pipe.
- a pipe according to the present invention is is easy to lay and, in addition, inexpensive in view of its properties.
- a pipe according to the present invention which is provided with a protective layer, is stiffer and stronger than the corresponding pipes in general and, in addition, it is fully protected against scratching.
- the invention enables e.g. the use of standard pipes in conditions to which they are not applicable as such, e.g. in laying procedures that cause vast tensile stresses or in laying in the ground pipes impervious only to internal pressure.
- the properties of the core pipe or conducting pipe are optimised for the conducting of fluids and the outer layer is designed to resist any external conditions and stress. This results in a pipe arrangement where the structure has not been compromised with, thus replacing expensive special pipes with standard pipes coated with an inexpensive outer layer tailored for the laying conditions.
- Welding is also easier and safer with the pipe formed by the method of the invention since e.g. seaming of pipes is not possible without that the outer layer is first removed from the area to be seamed, i.e. the pipe ends must always be clean when they are seamed, whether by welding or by any other method.
- the inventive concept ensures that welding is always successful and that the welding machines operate as intended.
- Fig. 1 depicts coating of a plastic pipe 2 according to the invention with a surface layer by coextrusion.
- the surface layer is formed from melt plastic 1 to provide a protective layer 3 around a pipe 2 of a specified size.
- Coextrusion dies 5, e.g. so-called crosshead dies, are known to one skilled in the art, and coextrusion as such is not explained herein in greater detail.
- the protective outer layer according to the invention is advantageously made easily detachable from the core pipe by simple means, either wholly or only at the joint surfaces, such as the pipe ends. In this way, the surfaces remain in as good a condition as possible for the seaming carried out by e.g. welding.
- these objectives are achieved by making the surface of the outer layer moderately hard, whereby it has a low adhesion, and to make the structure of the layer moderately stiff, whereby the outer layer con be detached from the pipe e.g. by knocking.
- chalk and talc are suitable fillers in respect of achieving this effect.
- the plastics raw material used for the protective outer layer 3 may be e.g. linear LDPE or even recycled plastics waste.
- the advantage of the linear LDPE is its high scratching and puncture resistance in view of its price, whereas the advantage of the plastics waste is its low price.
- the material is selected, it is advisable to take into account that if the outer layer is made from plastics differing from the material of the core pipe with respect to the chemical structure, the adhesion between the pipe and the protective outer layer is probably lower (they can be detached more easily) than if exactly the same material is used.
- the material of the outer layer 3 has at least the same strength and/or stiffness as the material of the core pipe 2.
- the protective outer layer can be a load-carrying component without having high requirements set for the raw material (the price must be as low as possible).
- cheap reinforcing and/or stiffening fillers or fibres may be mixed to the material of the protective layer.
- an outer layer 7 may be stiffened in accordance with Fig. 2, by ribbing or corrugations 6, to make the pipe 8 sufficiently stiff.
- the ribbed outer layer 7 may be formed e.g. in a gilled pipe machine or corrugating device.
- the protective outer layer can also be stiffened by foaming in a forming step, whereby the pipe also acquires a considerable thermal insulation capacity.
- the material of the outer layer 3 may advantageously be crosslinked in order to improve the stiffness and strength and the resistance of the outer layer of the pipe.
- the core pipe may be a thin-walled pipe or even a hose, which is capable of resisting only internal pressure caused by the fluid to be conducted, but which would be flattened by earth pressure when laid in the ground it not properly supported.
- the strength properties of the outer layer may also be made different in the radial and axial directions of the pipe.
- slate-like mica is mixed with the material of the outer layer to improve the barrier properties of the pipe.
- benzene compounds penetrate fairly easily through a wall of a conventional tap water pipe made from polyethene.
- a mixture having good resistance (barrier properties) to the penetration of the above substances is selected as the material of the outer layer, it is easy to tailor a tap water pipe for a specified aggressive chemical environment.
- barium sulfate is mixed with the material of the outer layer to make the specific gravity of the pipe higher than that of water.
- Barium sulfate(BaS0 4 ) has a high density, wherefore the overall density of e.g. a polyethene pipe can be made higher than that of water. This feature makes the pipe suitable for arrangements where the pipe is laid in water.
- easily magnetizable material or electrically conductive particles are mixed with the material of the outer layer to render the pipe detectable by a magnetic field.
- magnetizable material are iron oxide and barium ferrite.
- the outer layer makes it possible to render the pipe laid in the ground easily detectable by electromagnetic means. Mixed in a single-layer pipe, fillers of this kind would reduce the strength of the pipe.
- electrically conductive material is mixed with the material of the outer layer to render the pipe electrically conductive.
- cracks occurring in the pipe line can be detected e.g. by a cable fault finder.
- an electrically conductive outer casing eliminates risks caused by induced electricity e.g. in a explosive environment.
- the electrically conductive material may also be e.g. a copper wire embedded in the outer layer.
- all the necessary identifying dyes and UV stabilizing agents are mixed with the material of the outer layer. Thereby these pipe material-weakening agents need not be mixed to the material of the actual conducting or core pipe 2.
- an adhesion inhibiting or enhancing agent depending on the use and the materials selected, between the outer layer and the core pipe.
- a release agent such as a low molecule weight polyethylene wax, is mixed with the material of the outer layer to facilitate the detachment of the outer layer from the core pipe 2.
- a bath containing liquid polymers which act as an adhesion inhibiting layer.
- the outer layer is easy to detach from the core pipe. This is particularly advantageous when the core pipe needs to be easily replaceable (relining): the core pipe is replaced by simply pulling it out from the outer layer and inserting a new core pipe in the layer formed by the outer layer.
- the outer layer can also be designed to be detachable from the core pipe upon applying heat to the part of the outer layer to be removed.
- welding and/or crosslinking enhancing agents between the outer layer and the core pipe.
- Suitable welding enhancing agents include e.g. dicumylperoxide.
- Crosslinking agents complement the crosslinking reaction of the pipe material in the joint surface and provide lubrication, which is advantageous in that it reduces the adhesion of the protective layer.
- the crosslinking agents may be the same generally known radicals that are used in the matrix material of the pipe.
- a thin aluminum layer is provided between the outer layer and the core pipe.
- the aluminum layer both facilitates the detaching of the outer layer (in contrast to known plastic aluminum laminates) and functions as a barrier layer.
- a thin (0.1-0.3 mm) aluminum folic is formed on the outer layer of the core pipe by adhesion or ultrasonic welding.
- a pipe according to the present invention is advantageously seamed by peeling the outer layer off at the area of the pipes to be seamed, and by subsequently placing the pipes to be seamed together, and by carrying out the seaming e.g. by electric welding. Thereafter the seam is protected where necessary with a layer similar to the outer layer, or left unprotected.
- FIG 3 is shown, by way of example, two, identical pipes 9 according to the invention, which are placed with their ends positioned against each other at 10 in an electrofusion pipe coupler device 11. The outer layers 12 of the pipes has been removed from the cores 13 at the ends of the pipes 9, in order to facilitate proper insertion and welding of the pipes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
Description
- The invention relates to a method of forming a multi-layer plastic pipe for conducting fluids. The invention also relates to a multi-layer plastic pipe formed by the method, as well as to a method of connecting a multi-layer plastic pipe.
- During handling, laying and joining of plastic pipes, the pipe surface is exposed to damage. For example, modern laying methods for plastic pipes are based on drilling a tunnel in the ground for the pipe, the pipe being then passed through the tunnel e.g. to an excavation where the next pipe sections are seamed.
- Naturally, a pipe is hereby subjected e.g. to different bending and tensile forces. This is disadvantageous since bending, stretching and scratching of a pipe deteriorate its mechanical strength, thereby reducing its life. In addition, the lifetime of a pipe may be reduced by environmental condition, such as diffusible materials.
- It is previously known to coat plastic pipes with different protective layers e.g. for transportation and storage. However the known protective layers are not load carrying structures, neither in respect of mechanical nor chemical loads.
- The object of the present invention is to eliminate the above disadvantages by providing a method for forming a dual layer plastic pipe. It is also an object of the present invention to provide such a pipe. Furthermore, it is an object of the present invention to provide a method of connecting a dual layer plastic pipe. A pipe according to the present invention is is easy to lay and, in addition, inexpensive in view of its properties.
- The method of forming a two-layer plastic pipe for conduction fluids, the two-layer plastic pipe formed by the method, and the method of connecting a dual layer plastic pipe, are characterized by what is stated in the appending claims.
- A pipe according to the present invention, which is provided with a protective layer, is stiffer and stronger than the corresponding pipes in general and, in addition, it is fully protected against scratching. The invention enables e.g. the use of standard pipes in conditions to which they are not applicable as such, e.g. in laying procedures that cause vast tensile stresses or in laying in the ground pipes impervious only to internal pressure.
- When a single-layer pipe is formed, often a bigger or smaller amount of fillers, depending on the use or the pipe must be fixed with the plastic materail. Fillers usually have a disadvantageous effect on the mechanical properties and weldability of the pipe. In a two-layer pipe according to the present invention, the properties of the core pipe or conducting pipe are optimised for the conducting of fluids and the outer layer is designed to resist any external conditions and stress. This results in a pipe arrangement where the structure has not been compromised with, thus replacing expensive special pipes with standard pipes coated with an inexpensive outer layer tailored for the laying conditions.
- Welding is also easier and safer with the pipe formed by the method of the invention since e.g. seaming of pipes is not possible without that the outer layer is first removed from the area to be seamed, i.e. the pipe ends must always be clean when they are seamed, whether by welding or by any other method. The inventive concept ensures that welding is always successful and that the welding machines operate as intended.
- In the following the invention is described in greater detail by means of examples and with reference to the attached drawings, wherein
- Fig. 1 depicts a forming method and a pipe according to one embodiment of the invention,
- Fig. 2 depicts another embodiment of the pipe of the invention.
- Fig. 3 shows partly in section two pipes according to the invention placed in a welding device.
- Fig. 1 depicts coating of a
plastic pipe 2 according to the invention with a surface layer by coextrusion. The surface layer is formed frommelt plastic 1 to provide a protective layer 3 around apipe 2 of a specified size. Coextrusion dies 5, e.g. so-called crosshead dies, are known to one skilled in the art, and coextrusion as such is not explained herein in greater detail. - The protective outer layer according to the invention is advantageously made easily detachable from the core pipe by simple means, either wholly or only at the joint surfaces, such as the pipe ends. In this way, the surfaces remain in as good a condition as possible for the seaming carried out by e.g. welding. According to a preferred embodiment of the invention, these objectives are achieved by making the surface of the outer layer moderately hard, whereby it has a low adhesion, and to make the structure of the layer moderately stiff, whereby the outer layer con be detached from the pipe e.g. by knocking. For example chalk and talc are suitable fillers in respect of achieving this effect.
- In a pipe 4 according to the invention the plastics raw material used for the protective outer layer 3 may be e.g. linear LDPE or even recycled plastics waste. The advantage of the linear LDPE is its high scratching and puncture resistance in view of its price, whereas the advantage of the plastics waste is its low price. When the material is selected, it is advisable to take into account that if the outer layer is made from plastics differing from the material of the core pipe with respect to the chemical structure, the adhesion between the pipe and the protective outer layer is probably lower (they can be detached more easily) than if exactly the same material is used.
- According to another preferred embodiment of the invention, the material of the outer layer 3 has at least the same strength and/or stiffness as the material of the
core pipe 2. Thus the protective outer layer can be a load-carrying component without having high requirements set for the raw material (the price must be as low as possible). Thus, cheap reinforcing and/or stiffening fillers or fibres may be mixed to the material of the protective layer. Alternatively, an outer layer 7 may be stiffened in accordance with Fig. 2, by ribbing or corrugations 6, to make thepipe 8 sufficiently stiff. The ribbed outer layer 7 may be formed e.g. in a gilled pipe machine or corrugating device. - The protective outer layer can also be stiffened by foaming in a forming step, whereby the pipe also acquires a considerable thermal insulation capacity.
- Furthermore, the material of the outer layer 3 may advantageously be crosslinked in order to improve the stiffness and strength and the resistance of the outer layer of the pipe. In pipes reinforced in this manner, the core pipe may be a thin-walled pipe or even a hose, which is capable of resisting only internal pressure caused by the fluid to be conducted, but which would be flattened by earth pressure when laid in the ground it not properly supported. The strength properties of the outer layer may also be made different in the radial and axial directions of the pipe.
- In a further embodiment of the invention, slate-like mica is mixed with the material of the outer layer to improve the barrier properties of the pipe. For example, benzene compounds penetrate fairly easily through a wall of a conventional tap water pipe made from polyethene. When a mixture having good resistance (barrier properties) to the penetration of the above substances is selected as the material of the outer layer, it is easy to tailor a tap water pipe for a specified aggressive chemical environment.
- In yet another embodiment of the invention barium sulfate is mixed with the material of the outer layer to make the specific gravity of the pipe higher than that of water. Barium sulfate(BaS04) has a high density, wherefore the overall density of e.g. a polyethene pipe can be made higher than that of water. This feature makes the pipe suitable for arrangements where the pipe is laid in water.
- In an additional embodiment of the invention, easily magnetizable material or electrically conductive particles are mixed with the material of the outer layer to render the pipe detectable by a magnetic field. Examples of magnetizable material are iron oxide and barium ferrite. In this embodiment the outer layer makes it possible to render the pipe laid in the ground easily detectable by electromagnetic means. Mixed in a single-layer pipe, fillers of this kind would reduce the strength of the pipe.
- In still a further embodiment of the invention, electrically conductive material is mixed with the material of the outer layer to render the pipe electrically conductive. In an electrically conductive outer layer, cracks occurring in the pipe line can be detected e.g. by a cable fault finder. In addition, an electrically conductive outer casing eliminates risks caused by induced electricity e.g. in a explosive environment. The electrically conductive material may also be e.g. a copper wire embedded in the outer layer.
- In a still further embodiment of the invention all the necessary identifying dyes and UV stabilizing agents are mixed with the material of the outer layer. Thereby these pipe material-weakening agents need not be mixed to the material of the actual conducting or
core pipe 2. - During the formation of the pipe it is possible to introduce an adhesion inhibiting or enhancing agent, depending on the use and the materials selected, between the outer layer and the core pipe. In a preferred embodiment of the invention, a release agent, such as a low molecule weight polyethylene wax, is mixed with the material of the outer layer to facilitate the detachment of the outer layer from the
core pipe 2. In another layer dipped in a bath containing liquid polymers which act as an adhesion inhibiting layer. - If the core pipe is made e.g. from polyethene and the outer layer from polypropene mixed with wax, the outer layer is easy to detach from the core pipe. This is particularly advantageous when the core pipe needs to be easily replaceable (relining): the core pipe is replaced by simply pulling it out from the outer layer and inserting a new core pipe in the layer formed by the outer layer.
- The outer layer can also be designed to be detachable from the core pipe upon applying heat to the part of the outer layer to be removed.
- It is also possible to introduce welding and/or crosslinking enhancing agents between the outer layer and the core pipe. Suitable welding enhancing agents include e.g. dicumylperoxide. Crosslinking agents complement the crosslinking reaction of the pipe material in the joint surface and provide lubrication, which is advantageous in that it reduces the adhesion of the protective layer. The crosslinking agents may be the same generally known radicals that are used in the matrix material of the pipe.
- In a further embodiment of the invention, a thin aluminum layer is provided between the outer layer and the core pipe. The aluminum layer both facilitates the detaching of the outer layer (in contrast to known plastic aluminum laminates) and functions as a barrier layer. In practice, a thin (0.1-0.3 mm) aluminum folic is formed on the outer layer of the core pipe by adhesion or ultrasonic welding.
- A pipe according to the present invention is advantageously seamed by peeling the outer layer off at the area of the pipes to be seamed, and by subsequently placing the pipes to be seamed together, and by carrying out the seaming e.g. by electric welding. Thereafter the seam is protected where necessary with a layer similar to the outer layer, or left unprotected. In figure 3 is shown, by way of example, two,
identical pipes 9 according to the invention, which are placed with their ends positioned against each other at 10 in an electrofusionpipe coupler device 11. The outer layers 12 of the pipes has been removed from thecores 13 at the ends of thepipes 9, in order to facilitate proper insertion and welding of the pipes. - It is obvious to one skilled in the art that the embodiments of the invention are not limited to those described above, but that they may vary within the scope of the attached claims.
Claims (38)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI925897A FI96396C (en) | 1992-12-28 | 1992-12-28 | Process for forming a double-layered plastic tube for material transport and a double-layered plastic tube formed by the method |
FI925897 | 1992-12-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0604907A1 true EP0604907A1 (en) | 1994-07-06 |
EP0604907B1 EP0604907B1 (en) | 1998-05-27 |
Family
ID=8536461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93120793A Expired - Lifetime EP0604907B1 (en) | 1992-12-28 | 1993-12-23 | A method of forming a multilayer plastic pipe and a multilayer plastic pipe for conducting fluids |
Country Status (10)
Country | Link |
---|---|
US (1) | US5759461A (en) |
EP (1) | EP0604907B1 (en) |
JP (1) | JPH071542A (en) |
AT (1) | ATE166609T1 (en) |
AU (1) | AU670835B2 (en) |
CA (1) | CA2112440A1 (en) |
DE (1) | DE69318813C5 (en) |
DK (1) | DK0604907T5 (en) |
ES (1) | ES2117089T3 (en) |
FI (1) | FI96396C (en) |
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EP0645571A1 (en) * | 1993-09-25 | 1995-03-29 | Dipl.-Ing. Dr. Ernst Vogelsang GmbH & Co. KG | Extruded pipe end made from polyethylene and method for producing same |
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WO1995012483A1 (en) * | 1993-11-05 | 1995-05-11 | Battenfeld Extrusionstechnik Gmbh | Process and device for manufacturing multilayerd products by extrusion or pultrusion and the use of the melt co-extruded with the aid of the said device |
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Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6183673B1 (en) * | 1998-04-24 | 2001-02-06 | Industrial Thermo Ploymers Limited | Method for forming extruded foam with surface coating |
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Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3649730A (en) * | 1967-09-29 | 1972-03-14 | Benteler Werke Ag | Method of jacketing tubular stock with polyolefin foam |
AT351324B (en) * | 1975-12-06 | 1979-07-25 | Kabel Metallwerke Ghh | PLASTIC PIPE FOR TRANSPORTING LIQUID OR GASEOUS MEDIA, ESPECIALLY AT HIGH TEMPERATURES AND HIGH PRESSURE, AND PROCESS FOR MANUFACTURING THESSES |
EP0024220A1 (en) * | 1979-08-21 | 1981-02-25 | Ollivier, Jean | Process for manufacturing a tube composed of a metal and plastics material, and apparatus for carrying out this process |
DE3016134A1 (en) * | 1980-04-24 | 1981-10-29 | Mecano-Bundy Gmbh, 6900 Heidelberg | Compound plastics tube assembly - is for fuel pipeline and has metal foil enclosed between inner and outer layer |
AT365974B (en) * | 1975-08-02 | 1982-02-25 | Allg Synthetische Gmbh | METHOD FOR PRODUCING A HOT WATER RESISTANT PLASTIC PIPE |
EP0159307A1 (en) * | 1984-03-20 | 1985-10-23 | Kabelwerk Eupen AG Cablerie d'Eupen SA Kabelfabriek Eupen NV | Method for applying an electrically conducting wire to a protection tube for a cable |
AT385104B (en) * | 1981-11-23 | 1988-02-25 | Wieland Werke Ag | COMPOSITE PIPE, METHOD FOR PRODUCING A COMPOSITE PIPE, AND DEVICE FOR IMPLEMENTING THE METHOD |
DE3638136A1 (en) * | 1986-11-08 | 1988-05-11 | Kabel Metallwerke Ghh | Double-walled plastic pipe and use thereof |
US4906313A (en) * | 1988-05-09 | 1990-03-06 | R. W. Lyall & Company, Inc. | Fusion weld method and assembly for forming a fusion welded joint between pipe sections |
US4932746A (en) * | 1987-06-01 | 1990-06-12 | Societa' Cavi Pirelli S.P.A. | Optical fiber cable with optical fibers in tubes unbonded to surrounding core |
WO1991000466A1 (en) * | 1989-06-29 | 1991-01-10 | Jonaco Gmbh | Composite plastic pipe |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2031959A1 (en) * | 1970-06-27 | 1972-01-13 | Maschf Augsburg Nuernberg Ag | Two layer plastic pipe - with longitudinally reinforced inner layer and circumferentially reinforced outer layer |
US3740958A (en) * | 1971-01-19 | 1973-06-26 | S Cadwell | Method of fabricating and installing a submergible pipeline |
DE2261530C3 (en) * | 1972-12-15 | 1976-01-02 | Fraenkische Isolierrohr- & Metallwaren-Werke, Gebr. Kirchner, 8729 Koenigsberg | Plastic insulating tube |
SE381001B (en) * | 1973-10-22 | 1975-11-24 | Erik G W Nordstroem | PROCEDURE AND DEVICE FOR THE MANUFACTURE OF PLASTIC CAMPLANGES |
SU636445A1 (en) * | 1976-10-26 | 1978-12-05 | Сибирский научно-исследовательский и проектный институт газонефтепромыслового строительства | Device for ballasting underwater pipeline |
DE2753103A1 (en) * | 1977-11-29 | 1979-06-07 | Roehm Gmbh | METHOD AND DEVICE FOR THE PRODUCTION OF A FILM-COATED HOLLOW PROFILE STRAND FROM PLASTIC |
DE2832547A1 (en) * | 1978-07-25 | 1980-02-07 | Wirsbo Pex Gmbh | PLASTIC PIPE OR HOSE |
NL7903080A (en) * | 1979-04-19 | 1980-10-21 | Wavin Bv | PLASTIC TUBE PART WITH AN INSULATION LAYER. |
US4299256A (en) * | 1980-10-06 | 1981-11-10 | Baxter Travenol Laboratories, Inc. | Coextruded silicone-containing tubing having long term frictional lubrication properties |
DK448782A (en) * | 1981-11-16 | 1983-05-17 | Kabelmetal Electro Gmbh | PROCEDURE FOR PREPARING A CONNECTOR |
US4728478A (en) * | 1982-08-05 | 1988-03-01 | Allied-Signal Inc. | Polymer films containing platelet particles |
US4548751A (en) * | 1983-08-03 | 1985-10-22 | E. R. Squibb & Sons, Inc. | (2-Oxo-1-azetidinyloxy)-2-propenoic acid |
SE446954B (en) * | 1985-03-12 | 1986-10-20 | Uponor Ab | SET FOR EXTRUDING A DOUBLE WALL PLASTROR AND EXTRACTING TOOL FOR EXTENDING THE SET |
NL8502327A (en) * | 1985-08-23 | 1987-03-16 | Wavin Bv | PLASTIC TUBE COMPRISING AN OUTDOOR HOUSING WITH RIDGES AND SMOOTH INTERIOR WALL AND METHOD FOR REPAIRING RESP. IMPROVE A SEWAGE TUBE. |
US4927184A (en) * | 1986-11-07 | 1990-05-22 | Atochem | Pipes base on polyolefin resin for manufacturing pipelines and couplings for assembling them |
US4836968A (en) * | 1987-04-15 | 1989-06-06 | Sterling Engineered Products Inc. | Method of making fiber optic duct insert |
US4818782A (en) * | 1987-07-30 | 1989-04-04 | E. I. Du Pont De Nemours And Company | Ethylene vinyl alcohol copolymers containing platelet-type mica fillers, processes for preparing same and multi-layer containers with layers thereof |
GB8900256D0 (en) * | 1989-01-06 | 1989-03-08 | Vactite Ltd | Insulated electric wire |
CA1331395C (en) * | 1989-02-01 | 1994-08-09 | James R. Kleisle | Wear indicator for material transfer systems |
GB8913743D0 (en) * | 1989-06-15 | 1989-08-02 | Bicc Plc | Manufacture of extruded products |
JP2868018B2 (en) * | 1989-06-21 | 1999-03-10 | 大阪瓦斯株式会社 | Electrofusion pipe |
AU636672B2 (en) * | 1989-10-19 | 1993-05-06 | Vinidex Pty Limited | Protection of pipelines |
DK165134C (en) * | 1990-09-07 | 1994-02-28 | Tarco Energi As | PLASTICS FOR NUTRITION IN THE EARTH |
-
1992
- 1992-12-28 FI FI925897A patent/FI96396C/en not_active IP Right Cessation
-
1993
- 1993-12-23 DE DE69318813T patent/DE69318813C5/en not_active Expired - Lifetime
- 1993-12-23 AT AT93120793T patent/ATE166609T1/en active
- 1993-12-23 ES ES93120793T patent/ES2117089T3/en not_active Expired - Lifetime
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- 1993-12-24 CA CA002112440A patent/CA2112440A1/en not_active Abandoned
- 1993-12-28 JP JP5349095A patent/JPH071542A/en active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3649730A (en) * | 1967-09-29 | 1972-03-14 | Benteler Werke Ag | Method of jacketing tubular stock with polyolefin foam |
AT365974B (en) * | 1975-08-02 | 1982-02-25 | Allg Synthetische Gmbh | METHOD FOR PRODUCING A HOT WATER RESISTANT PLASTIC PIPE |
AT351324B (en) * | 1975-12-06 | 1979-07-25 | Kabel Metallwerke Ghh | PLASTIC PIPE FOR TRANSPORTING LIQUID OR GASEOUS MEDIA, ESPECIALLY AT HIGH TEMPERATURES AND HIGH PRESSURE, AND PROCESS FOR MANUFACTURING THESSES |
EP0024220A1 (en) * | 1979-08-21 | 1981-02-25 | Ollivier, Jean | Process for manufacturing a tube composed of a metal and plastics material, and apparatus for carrying out this process |
DE3016134A1 (en) * | 1980-04-24 | 1981-10-29 | Mecano-Bundy Gmbh, 6900 Heidelberg | Compound plastics tube assembly - is for fuel pipeline and has metal foil enclosed between inner and outer layer |
AT385104B (en) * | 1981-11-23 | 1988-02-25 | Wieland Werke Ag | COMPOSITE PIPE, METHOD FOR PRODUCING A COMPOSITE PIPE, AND DEVICE FOR IMPLEMENTING THE METHOD |
EP0159307A1 (en) * | 1984-03-20 | 1985-10-23 | Kabelwerk Eupen AG Cablerie d'Eupen SA Kabelfabriek Eupen NV | Method for applying an electrically conducting wire to a protection tube for a cable |
DE3638136A1 (en) * | 1986-11-08 | 1988-05-11 | Kabel Metallwerke Ghh | Double-walled plastic pipe and use thereof |
US4932746A (en) * | 1987-06-01 | 1990-06-12 | Societa' Cavi Pirelli S.P.A. | Optical fiber cable with optical fibers in tubes unbonded to surrounding core |
US4906313A (en) * | 1988-05-09 | 1990-03-06 | R. W. Lyall & Company, Inc. | Fusion weld method and assembly for forming a fusion welded joint between pipe sections |
WO1991000466A1 (en) * | 1989-06-29 | 1991-01-10 | Jonaco Gmbh | Composite plastic pipe |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
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DE4332774A1 (en) * | 1993-09-25 | 1995-03-30 | Vogelsang Ernst Gmbh Co Kg | Pipeline section produced from polyethylene by extrusion |
EP0645571A1 (en) * | 1993-09-25 | 1995-03-29 | Dipl.-Ing. Dr. Ernst Vogelsang GmbH & Co. KG | Extruded pipe end made from polyethylene and method for producing same |
US5738814A (en) * | 1993-11-05 | 1998-04-14 | Battenfeld Extrusionstechnik Gmbh | Method of manufacturing of lacquer-coated extrusion products |
WO1995012483A1 (en) * | 1993-11-05 | 1995-05-11 | Battenfeld Extrusionstechnik Gmbh | Process and device for manufacturing multilayerd products by extrusion or pultrusion and the use of the melt co-extruded with the aid of the said device |
DE4444097A1 (en) * | 1994-12-10 | 1996-06-13 | Unicor Rohrsysteme Gmbh | Welding sleeve for metal pipes with plastic outer and inner skin |
GB2323556A (en) * | 1995-01-18 | 1998-09-30 | Uponor Ltd | Plastics pipe |
GB2297138B (en) * | 1995-01-18 | 1998-08-05 | Uponor Ltd | Plastics pipe |
EP1593896A1 (en) * | 1995-01-18 | 2005-11-09 | Uponor Limited | Plastic pipes |
GB2323556B (en) * | 1995-01-18 | 1999-02-03 | Uponor Ltd | Method of manufacture of plastics pipe |
AU705621B2 (en) * | 1995-01-18 | 1999-05-27 | Radius Systems Limited | Plastics pipe |
US6016849A (en) * | 1995-01-18 | 2000-01-25 | Uponor Limited | Plastics pipe |
EP1321703A2 (en) * | 1995-01-18 | 2003-06-25 | Uponor Limited | Plastics pipes |
EP1321703A3 (en) * | 1995-01-18 | 2003-07-16 | Uponor Limited | Plastics pipes |
EP1818586A1 (en) * | 1995-01-18 | 2007-08-15 | Uponor Limited | Plastics pipe |
WO1996022485A1 (en) * | 1995-01-18 | 1996-07-25 | Uponor Limited | Plastics pipe |
EP0855263A2 (en) * | 1997-01-22 | 1998-07-29 | Hegler, Ralph-Peter, Dr.-Ing. | Method and apparatus for manufacturing a corrugated sheathing tube surrounding a fluid carrying conduit |
EP0855263A3 (en) * | 1997-01-22 | 2000-05-03 | Hegler, Ralph-Peter, Dr.-Ing. | Method and apparatus for manufacturing a corrugated sheathing tube surrounding a fluid carrying conduit |
WO2004016421A1 (en) | 2002-08-19 | 2004-02-26 | Uponor Innovation Ab | Plastics pipe |
US8685508B2 (en) | 2002-08-19 | 2014-04-01 | Radius Systems Limited | Plastics pipe |
GB2392222B (en) * | 2002-08-19 | 2005-08-31 | Uponor Innovation Ab | Plastics Pipe |
AU2003269094B2 (en) * | 2002-08-19 | 2008-09-18 | Radius Systems Limited | Plastics pipe |
WO2004016420A1 (en) * | 2002-08-19 | 2004-02-26 | Uponor Innovation Ab | Plastics pipe |
GB2421469B (en) * | 2004-12-23 | 2010-03-03 | Uponor Innovation Ab | Plastic pipe |
US8398908B2 (en) | 2004-12-23 | 2013-03-19 | Radius Systems Limited | Plastics pipe |
WO2006067501A1 (en) * | 2004-12-23 | 2006-06-29 | Uponor Innovation Ab | Plastics pipe |
WO2007063191A1 (en) * | 2005-12-02 | 2007-06-07 | Maillefer S.A. | Method in extrusion process, extrusion process and apparatus for extrusion process |
WO2007068792A1 (en) * | 2005-12-14 | 2007-06-21 | Conenor Oy | Method for making a composite product, and a composite product |
DE102006049338A1 (en) * | 2006-10-19 | 2008-04-24 | Egeplast Werner Strumann Gmbh & Co. Kg | Multilayer plastic pipe |
EP2716439A1 (en) | 2012-10-04 | 2014-04-09 | egeplast international GmbH | Object with multilayer exterior |
RU2722503C1 (en) * | 2019-11-16 | 2020-06-01 | Общество с ограниченной ответственностью "Курганский завод полиэтиленовых труб" | Polyethylene pipes production method |
RU2733368C1 (en) * | 2020-04-20 | 2020-10-01 | Общество с ограниченной ответственностью "Курганский завод полиэтиленовых труб" | Polyethylene pipes production method |
DE102022103799A1 (en) | 2022-02-17 | 2023-08-17 | Egeplast International Gmbh | At least three-layer plastic pipe |
Also Published As
Publication number | Publication date |
---|---|
DK0604907T5 (en) | 2009-01-19 |
FI96396B (en) | 1996-03-15 |
FI96396C (en) | 1996-06-25 |
CA2112440A1 (en) | 1994-06-29 |
DE69318813D1 (en) | 1998-07-02 |
ES2117089T3 (en) | 1998-08-01 |
EP0604907B1 (en) | 1998-05-27 |
US5759461A (en) | 1998-06-02 |
FI925897A0 (en) | 1992-12-28 |
AU5269093A (en) | 1994-07-07 |
DE69318813T2 (en) | 1998-09-24 |
JPH071542A (en) | 1995-01-06 |
DE69318813C5 (en) | 2009-06-10 |
DK0604907T3 (en) | 1999-03-22 |
AU670835B2 (en) | 1996-08-01 |
ATE166609T1 (en) | 1998-06-15 |
FI925897A (en) | 1994-06-29 |
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